News tagged with copulatory organ
How 'secondary' sex characters can drive the origin of species
Biology /
Aug 25, 2008 |
4.4 / 5 (5) |
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The ostentatious, sometimes bizarre qualities that improve a creature's chances of finding a mate may also drive the reproductive separation of populations and the evolution of new species, say two Indiana University Bloomington ...
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Stem-cell activators switch function, repress mature cells
8 hours ago |
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In a developing animal, stem cells proliferate and differentiate to form the organs needed for life. A new study shows how a crucial step in this process happens and how a reversal of that step contributes to cancer.
See-through goldfish shows clear benefits for science, research
Dec 15, 2009 |
4 / 5 (1) |
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With Christmas around the corner, a see-through goldfish might make a nice Christmas present for the ichthyologist who has everything.
Heart cells on lab chip display 'nanosense' that guides behavior
Nanotechnology / Bio & Medicine
Dec 15, 2009 |
4 / 5 (2) |
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Johns Hopkins biomedical engineers, working with colleagues in Korea, have produced a laboratory chip with nanoscopic grooves and ridges capable of growing cardiac tissue that more closely resembles natural ...
MRSA leads to worse outcomes, staggering expenses for surgical patients
Dec 15, 2009 |
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Post-surgical infections significantly increase the chance of hospital readmission and death and cost as much as $60,000 per patient, according to Duke University Medical Center researchers who conducted the largest study ...
Septic shock: Nitric oxide beneficial after all
Dec 15, 2009 |
5 / 5 (1) |
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Scientists at VIB and Ghent University in Flanders, Belgium have found an unexpected ally for the treatment of septic shock, the major cause of death in intensive care units. By inducing the release of nitric oxide (NO) gas ...
Plastics component affects intestine: study
Dec 14, 2009 |
5 / 5 (7) |
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The chemical Bisphenol A used in plastic containers and drinks cans has been shown for the first time to affect the functioning of the intestines, according to a French study published Monday.
Fossils on the Edge of Forever
Space & Earth / Earth Sciences
Dec 14, 2009 |
4.9 / 5 (10) |
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Astrobiologists have not yet found alien life on other planets. But the fossil record has evidence of aliens of another sort: the Ediacarans that lived on Earth millions of years ago.
Tendons shape bones during embryonic development
Dec 14, 2009 |
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In all vertebrates, including humans, bones, muscles and tendons work together to give the skeleton its characteristic balance of stability and movement. Now, new research uncovers a previously unrecognized interaction between ...
Gas improves blood flow and organ status during minimally invasive surgery
Dec 14, 2009 |
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As good as laparoscopy is in preventing some of the stresses of open surgery on the body, it does have drawbacks, including reduced blood flow and organ dysfunction. Laparoscopy is a type of surgery in the abdomen done through ...
26 operations, 13 kidneys: hope to few with little
Dec 14, 2009 |
5 / 5 (1) |
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(AP) -- Twenty-six operations put healthy kidneys into 13 desperately ill people: Doctors in the nation's capital just performed a record-setting kidney swap, part of a pioneering effort to expand transplants ...
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